Nigute ushobora guhitamo hydroxypropyl methylcellulose kubwimbere ninyuma yo hanze

Nigute ushobora guhitamo neza HPMC

1. Ukurikije icyitegererezo: Ukurikije formulaire zitandukanye za putties zitandukanye, moderi ya viscosity ya hydroxypropyl methylcellulose na methylcellulose nayo iratandukanye. Bakoreshwa kuva 40.000 kugeza 100.000. Muri icyo gihe, fibre yibimera ntishobora gusimbuza uruhare rwabandi bahuza, kongeraho selile ether ntabwo bivuze ko ibigize izindi binderi bishobora kugabanuka.

2. Ukeneye amazi akonje akwirakwiza selulose ether: Cellulose ether (harimo hydroxypropyl methylcellulose na methylcellulose) ni surfactant ifite ububobere bwinshi nyuma yo guseswa. Ninimpamvu yiyi miterere ko niba ether ya selile isanzwe yongewe mumazi, byoroshye gukora umupira, kandi hanze yumupira washyizwe mumuti mwinshi cyane, kandi imbere urapfunyitse, kandi biragoye kugirango amazi yinjire, bivamo gushonga nabi. . Ether-itunganijwe hejuru ya selile (ishobora gutinda guseswa) ntabwo izaba imeze gutya, kandi irashobora gukwirakwizwa neza mumazi akonje (gutinda gushonga, kandi buhoro buhoro nyuma yo gutatana). Nibyiza guhitamo kumva itandukaniro ryavuzwe haruguru.

1. Kubintu byumye bivanze imbere hamwe nurukuta rwinyuma rushyizwe hejuru, kubera ko selile ya selile yatatanye neza mubikoresho mugihe cyo kuvanga byumye, ntihazabaho agglomeration. Kubwibyo, birasabwa gukoresha ubwoko busanzwe (ubwoko bwo gukwirakwiza amazi adakonje), kubera ko igipimo cyo gusesa cyubwoko busanzwe cyihuta kuruta icyogukwirakwiza amazi akonje, bigabanya igihe cyo gutegereza kuvanga ibishishwa byubaka.

2. Kugirango hategurwe putty ishonga mu buryo butaziguye ether ya selulose (harimo hydroxypropyl methylcellulose na methylcellulose) mumazi ikayivanga nibindi bikoresho, birasabwa gukoresha ubwoko bwa selile ikwirakwiza amazi akonje. Ether ya selile yakozwe na selile irashobora gukwirakwizwa neza mumazi akonje hanyuma igashonga (irashobora gutinda guseswa)